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Author Re: Apple iPhone is GSM - GPS ?
Todd Allcock

2007-07-18, 10:33 am

At 18 Jul 2007 10:03:12 -0400 JDa=99=A9 wrote:

> Looking through the spec's, theres no reference to GPS.
> Isn't GPS *required* by the FCC on all new phones, so to
> be compatible with new 911 location services?


No- SOME way to locate the phone if it calls 911 is required, but it
doesn't have to have a "GPS." AT&T and other GSM carriers use a tower=
-
location system (a sort of advanced version of triangulation.)

This means AT&T knows where the phone is, but the phone doesn't. A fe=
w
GSM phones have actual satellite GPS modules built in (HP 6915, Nokia =
N95)
but the iPhone isn't one of them.

While CDMA carriers (like Sprint annd Verizon) use a GPS-based system
with a bit more accuracy, theirs is also network dependant- their phon=
es
don't know where they are either, unless you pay to receive that
information from the carrier.=20



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